Refrigeration



0ct. 24, 1939. A' R THOMAS 2,177,503

REFRIGERAT ON Fi1ed Aug. 13 1936 4 4 sheetssheet 4 ZNVENTOR eratively associating said vlve and said thermal elements and including two members in frictional engagenlent and Inovable relative to each other, Said structure being so Constructed and arranged that one of said elnents is' 0perative to n10ve one of Sai(in1e!nbers to close said valve upon predeternlined rise in ten1perature and the other of said elements is operative to move both of said !nelnbers, due to the frictiona1 engagenlent therebetween, to open said valve upon a predeternined rise in ten1perature 24. Apparatus for controuing an absorption refrigeration System including a control element nechanisn1 for operating said control elenent including two Inen1bers il1 fTicional engagenlent and Inov ble relative to each other, nleans 1'e Sponsive to al te!!1perature condition t0 cause one of said' members to move said control element to a f11'st positio!1, Ineans responsive to a different te1perature condition to cause both of said nlen1bers due to the frictional engagenlent therebetvveen, to n10ve said c0I1r0l elenlent f0n the flrst position tb a second position, and nleans c00peratingwith said contr01 elen en to cause the latter to nlove with a Snapaction' 25. Apparatus as set f0th in claim 24, in wmch said nleans to cause said control elelent to nlove with a snap action includes a 1Ilagnetic 1:le!nber;

AlBERT R. THOMs. 

